電気自動車における車体速度情報不要の新しいタイヤ空転検出法

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タイトル別名
  • Novel Wheel Skid Detection Method without Chassis Velocity for Electric Vehicle
  • デンキ ジドウシャ ニ オケル シャタイ ソクド ジョウホウ フヨウ ノ アタラシイ タイヤ クウテン ケンシュツホウ

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抄録

Novel wheel skid detection method for electric vehicle (EV) is proposed and experimentally evaluated. This proposed method can detect the skid of wheel with only the values of current and rotating velocity of each motor. Estimation of vehicle chassis velocity or wheel absolute velocity is not required any more, and this is a remarkable advantage over conventional methods for anti skid brake system (ABS) or traction control system (TCS). In this proposed method, skid is detected with the dependence of traction force on motor torque. Traction force is estimated with simple disturbance observer. Therefore, the exact value of shaft input torque is required in this method. It is quite easy for EV, but not so for internal combustion vehicle (ICV). Proposed algorithm is examined with experimental results with laboratory-made electric vehicle “UOT Electric March-I”. These experimental data show the effectiveness of our new skid detection method. Another simulation results show that the skid prevention can be achieved with proposed skid detection method.

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